Bunsen burner.



F. 5.1m & c. H. VOGEL.

BUNSEN BUHNER. APPLICATIONy FILED MAY 4.1918.

Rs ca, mmm umu., wasnmvrmowy n. c,

UNITED sTATEs PATENT oEEIoE.

:EHANCIs B. JOY' AND CH'EIsTIAN H. VOGEL, OE DETROIT, MICHIGAN, AssIeNoEs To THE DETROIT HEATINGr a LIGHTING COMPANY, OF DETROIT, MICHIGAN, A CORPO- RATION 0F MICHIGAN.

BUNSEN BURNER.

Specification of Letters Patent.

Application filed May 4, 1918. Serial N o. 232,430.

To all whom t may concern:

Be it known that we, FRANCIS B. JOY and CHRISTIAN I-I. VOGEL, citizens of the United States of America, residing at Detroit, in the county oi Wayne and State of Michigan, have invented certain new and useful Improvements in Bunsen Burners, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to gas burners and more particularly to gas burners of the welllInown Bunsen type.

It is the object of the invention to provide an improved mounting for a ABunsen burner, an improved adjustment means for regulating the air supply thereto, and to embody various other structural features in a Bunsen type of burner to increase the eficiency thereof and decrease the cost of production.

In the accompanying drawings:

Figure 1 is a perspective view of the burner, and;

Fig. 2 is a view of the same in vertical section.

In these views the reference character 1 designates a base, centrally orificed as indi cated at 2, and 3 is a standard formed in tegrally with said base at one side of said oriice and curved to position a barrel 4 at the upper end of said standard above the orifice of the base. Within said barrel there is'itted a valve casing 5, the upper portion of which is enlarged to bear upon the top of the barrel, as indicated at 6. The casing 5 is formed with an axial passage 7, the lower portion of which is threaded -to be engaged by the Valve stem 8. The upper extremity o1 said stem is tapered to engage a valve seat 9 surrounding a restricted gas outlet in the top of the casing 5 and the barrel 4 is integrally formed with a nipple 10 for connection with a gas supply hose (not shown), the passage through said nipple having communication with the axial opening of the casing through an orifice 11 in said casing. To provide for a flow of gas from said orifice to the outlet at the top of the casing, the upper portion of the stem 9 is of reduced diameter, as indicated at 12.

The enlarged upper portion of the casing 5 has screw-threaded engagement with the lower end of a suitable mixing chamber 13 which has formed therein, a circumferen tial series of triangular air induction oriiioes 14. The upper end of said mixing chamber communicates with and is rigidly connected to the lower extremity of a vertical tube 15 through which the mixture of gas and air rises to the point of combustion.

By adjusting the parts 13 and 15 downwardly upon the casing 5, the size of the openings forming air inlets to the chamber 13 may be continuously reduced and even entirely closed in a limiting position of said parts 13 and 15. An adjustment upwardly of said parts will continuously increase the size of the openings until, if desired, the entire area of the orifices 14 is exposed above the casing. By employing a single standard to support the barrel 4, the knob 16, by which the valve stem is turned, is readily accessible.

What We claim as our invention, is:

1. In a gas burner, the combination with a base, of a barrel vertically mounted and spaced above said base, a valve casing carried by said barrel and formed with an axial passage, a. valve engaging in said passage to close the same and projecting below said barrel, means for establishing a gas connection through the barrel and casing with said passage, and an air mixing chamber having screw-threaded engagement with a projecting portion of said casing and having an outlet for the gaseous mixture, said chamber having a circumferential series of triangular openings for admitting air, said openings being variably closed through rotative adjustment of the mixing chamber relative to the casing.

2. In a gas burner, the combination with a valve casing having an vaxial passage terminating in a gas outlet, and having a gas inlet to said passage, of a valve controlling the flow of gas through said passage, a miX- mixing chamber, and an outlet tube for the ing chamber having screw-threaded engagegaseous mixture carried by the mixing ment With the casing and inclosing the gas chamber. 10 outlet thereof, said chamber having it eir- In testimony whereof We affix our signa- 5 eumferential series of triangularlair inductures.

tion orifices adapted to be variably closed yFRANCISJB. JOY. by the valve casing through rotation of said CHRISTIAN H. VOGEL.

Copies of this'patet may -belobtained -for vfive-cents uea.eh,by'mhh-staring'the wmn'is'xllnffllntg Washington, D. C. 

